Sheet-metal-marking device



May 8, 1928. 1,668,684

F, P.KO UBEK"' 'SHEET umn. MARKING DEVICE I Fueduz. 2,9; 1927 ,2 l TffM-T W l '-835' I N VEN TOR.

l ATTORNEYS.

Patented May 8, 1928.

" FRANK .1. xouBEx, or" iannwrn, Immers.

SHEET-MTALMARIING DEVICE.

` applicati@ inea August 29, 1827. terna mi. 216,011.2.`

This invention relates to new and useful improvements in sheet metal marking devices and has among its objects to provide a comparatively simple marking device which can be manufactured at a compara` tively low cost and which shall be efficient in operation to the extent ot affording accgrate workmanship in the products for which it is used and also decrease the time required to execute orconstruct sheet metal articles oi manufacture.

Another object of my invention is to provide an `adjustable hinge for the elongated members whereby metal sheets of varying i thicknesses may be inserted therebetween for marking.

lith the above and other objectsin view, my invention consists in the novel combina tion, construction and arrangement of parts and members shown in the accompanying drawings, described in the following speciiications and particularly pointed out in the appended claims.

In the drawings :-Fig. 1 is a plan view of a` sheet metal marker embodying my invention.

Fig. 2 is a side eleva-tionof same.

Fig. 3, a section taken on line 3--3 of Fig. 2, showing the graduated scale on one of the pivoted members.

Fig. t is a cross sect-ion taken on line 4-4 of Fig. 1, showing the adjustable pivotal support for aiording the use 4of my device on metal plates orl bars of varying thicknesses.

The ymarking device embodied in the illustrations includes a pair of members 15 and 16 and provides for relatively longitudinal adjustment of the marking pins 17. The angle iron members 15 and 16 have their vertical legs disposed in the same direction to permit the marking of sheets of metal not only at their edges but in all points of the surface thereof.

The marking pins 17 are mounted in a slot 18 for longitudinal adjustment therein and are made with shoulders '17A so that they may be securely tightened in place by means of the nuts 17B. The pins 17 are pointed at their lower ends and partly pass into a groove 16A.

The upper face of the lateral leg of the member 16 is provided with a graduated scale 19 which co-operates with the markers 17 to a'ord setting of same at predetermined spacing.`

It will be observed that the member 15 is formed with aI pair of integral pivot ears, one ear 15AA being the extension of the vertical leg 15A and the other ear 15BB being an extension ot the horizontal leg 15B.

The member 16 is provided with a hublike pivot bearing 16B which is cast integrally to the extension 16C. The hub v16B being just long enough to lit between the ears 15AA and 15B.

A pivot bolt 2() extends through the ears 15AA and 15BB and through the vertically elongated passage 16D (as viewed in Fig. 4) within the hub 16B.

Thumb screws 21 mounted diametrically opposite to each other in the hub 16B confine the pivotal bolt 20 in av relatively fixed position to the hub 16B but permit an ladjustment of the bolt therein to atford a varying displacement oit' the members 15 and 16 to thereby permit the handling of metal sheets of varying thicknesses. Thus, if the upper thumb screw 21 (as viewed in Fig. 4) be withdrawn upwardly and the lower screw 21 be screwed inwardly t-he pivotal bolt will be moved upwardly `in the slotted passage 16D and will otter a greater spread between the working faces of the members 15 andl for comparatively thicker sheets.

A gauge bolt 22 is provided near the pivoted ends of the members 15 and 16. The bolt 22 is threaded into the leg 15B and is made suiiicient-ly long enough to permit the freespreading of the members 15 and 16. The opening 22A being enlarged to provide a free sliding action of the bolt 22 therein. The function of the gauge bolt 22 is to provide a stop for the edge of the metal to be marked.

From the above description and attached drawings it will be clearly understood that I have provided a simple and timeLsaving sheet metal marker, having indenting pins or markers which are relatively adjustable longitudinally ot one of the pivoted members and that the device can readily be adjusted for marking sheets of varying thick# ness.

I claim l 1. A sheet material marker comprising a pair of hingedly connected elongated members, one of said members having a longitudnally extending slot therein, a` plurality of pins mounted in said slot and adjustably and releasably held therein, said pins having their inner ends pointed and means for securely retaining said pins in fixed predetermined spaeings in said slot, there being a. groove in the other of said members adapted to receive a. portion of said pointed endsof 5 said pins to thereby afford the indentation of a sheet of material by said pointed ends upon the closing together of Said members, there being agraduated scale on the member with said groove arranged parallelly with said groove to facilitate the spacing of 10 said pins.

2. A sheet metal marker as embodied in claim 1, and including an adjustable hinge for said elongated members.

In witness whereof I aix my signature.

. FRANK P. KOUBEK. 

